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This is a composite data set for low temperature use formed from
Kingston et al. (1989) HLIKE.DATA(AEK89H)
and
Callaway et al. (1987) HLIKE.DATA(CALL87H)
using a three parameter fit with the first two Bethe coefficients
fixed - obtained from
Golden, Sampson & Goett S#HDATA.TEXT (nb *2)
Preferred data is taken from large scale comparative figures for the
transitions from the 1s state. The decisions on the preferred data
is rather arbitrary, but makes use of the 1/n**3 scaling rule in
circumstances where the original data is dubious.
The compilation prepared by
Giovanardi et al. (1987)
is also shown in these diagrams but does not appear to be of much
assistance.
For transitions from n = 2 - 3, the extrapolated fits to Callaway are
used.
** The extrapolation & interpolation for 4-3 and 6-3 is very poor
and is replaced by hand graphed values.
For transitions from n = 3,4 - 4,5 the extrapolated fits to Kingston
are used.
Data for the degenerate transitions due to electrons are taken from
Kingston et al. extrapolated as ln(Te)
H.P. Summers, Jan. 1991
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